[1.1.1] findAll() should throw FindFailed --- fixed: 2017-03-29

[RaiMan]

In the docs it says that findAll should cause a FindFailed exception if there are no matches in 1.1 (http://sikulix-2014.readthedocs.io/en/latest/region.html#Region.findAll). The actual behavior, however, seems to be that it returns a None object. I can make my code account for both, but which of these is the correct behavior moving forward?
(reported directly to RaiMan by Minyoung Choi)

All find operations (except exists by design) should report FindFailed and support the FindFailed response concept.